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Date:      Tue, 19 Oct 2004 17:00:50 -0400 (EDT)
From:      Robert Watson <rwatson@freebsd.org>
To:        Andrew Gallatin <gallatin@cs.duke.edu>
Cc:        freebsd-current@freebsd.org
Subject:   Re: mbuf leak with SMP and debug.mpsafenet=1
Message-ID:  <Pine.NEB.3.96L.1041019165823.47572a-100000@fledge.watson.org>
In-Reply-To: <16750.34028.715601.329873@grasshopper.cs.duke.edu>

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On Thu, 14 Oct 2004, Andrew Gallatin wrote:

> Log into another host and do:
> 
> % while 1
> while?  ssh  'netstat -m | grep mbufs'
> while?  netperf224 -Hscream -tUDP_STREAM -l60 -- -m 1 >& /dev/null
> while? end

I must have missed this e-mail previously, sorry about the slow response.
John Baldwin pointed me at it wondering why I hadn't answered, and that's
why :-).

Is the number of mbufs lost proportional to total run time since the
start, or number of runs since start?  I.e., if you shorten 60 seconds to
6 seconds but sample at the same rate, what impact does that have on the
measured leakage?

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
robert@fledge.watson.org      Principal Research Scientist, McAfee Research



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